Hi I'm running Exchange 2007 SP2 and had this error message on one of my mailbox servers today. It didn't cause an issue, but we decided to reboot the server out of hours anyway which cleared up the issue. Does anyone know how I can find out what the 'unresponsive transaction' is? The full KB is here, but not sure how we're supposed to fix this? http://technet.microsoft.com/en-gb/library/bb218441(EXCHG.80).aspx

1. There isn't a fix that I know of but in that KB you posted there is a user section which I assume you have looked at. If you can't identify this, then maybe a support call to MSFT may be the aswer. 2. Not sure if youre using Blackberry in your env, but if your are, then it can be caused by a user trying to activate the BB continously, I came across this issue last week and had the exact error code. We looked at our BB logs and identified this. Sukh

Hi Redman, Would like to point out this similar thread for your reference: http://social.technet.microsoft.com/Forums/en-US/exchangesvravailabilityandisasterrecovery/thread/5a2e4996-195c-4bf7-94b3-15b20df4df42 Hope it could help you. Best Regards!Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.